That was a wandering swarm of bees clustered together on the end of the limb I was holding in this picture. It's from a few years back. Notice I wasn't wearing any protective gear other than gloves. I trusted swarming bees not to sting. I've never been stung by a bee other than one I stepped on accidentally. Poor fellow.
This image is linked from this BugGuide article:
BugGuide Photography For The Beginner